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		<a href="1.html" target="_blank">1.switch case</a><br />
		<a href="2.html" target="_blank">2.选择年月日</a><br />
		<a href="3.html" target="_blank">3.判断密码是否正确</a><br />
		<a href="4.html" target="_blank">4.1到100之和</a><br />
		<a href="5.html" target="_blank">5.年到100万人</a><br />
		<a href="6.html" target="_blank">6.输出1到100</a><br />
		<a href="7.html" target="_blank">7.省份简称</a><br />
		<a href="8.html" target="_blank">8.计算闰年平年每月有几天</a><br />
		<a href="9.html" target="_blank">9.计算100以内（包括100）的偶数之和</a><br />
		<a href="10.html" target="_blank">10.从100每次递减5输出直至5</a><br />
		<a href="11.html" target="_blank">11.输出1至50中是7的倍数的数值之和</a>
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